Preparation method and application of a layered Steiner network structure fiber membrane

Abstract

The invention discloses a preparation method and application of a layered Steiner network structure fiber membrane. The fiber membrane is composed of polyvinyl alcohol, chitosan, polyvinylpyrrolidone, polyacrylic acid, polypropylene cellulose, polycarbonate , polyimide, the porogen is dichloromethane, polyvinyl alcohol, dimethyl sulfoxide, ammonium bicarbonate, sodium bicarbonate, acetone or tetrahydrofuran, the cross-linking agent is glutaraldehyde, methylenebisacrylamide , triethanolamine, polyethyleneimine or diethylenetriamine, the catalyst is made of hydrochloric acid, sulfuric acid or phosphoric acid and the solvent is deionized water, and the layered Steiner network structure fiber membrane prepared by this method is applied to the colorimetric explosive detection It can improve the sensitivity of colorimetric detection in terms of reaction time and response degree, and has the advantages of sensitive response, immediate display of results, simple operation and use, and the like. Moreover, according to the different explosive detection reagents loaded in the fiber membrane, it can detect and identify a variety of non-standard explosives and standard explosive raw materials, which is universal.

Description

A kind of preparation method of layered Steiner network structure fiber membrane and its application technical field The invention belongs to explosive detection and analysis field, be specifically related to a kind of preparation of layered Steiner network structure fiber membrane. Preparation method and its application in the detection of explosives. Background technique Colorimetric detection method has strong specificity, can be realized without external equipment, and has low cost, which is very suitable for explosion On-site rapid detection and analysis of explosives (ACS Applied Materials & Interfaces, 2017, 9(28): p.23884‑ 23893). Paper-based colorimetric detection can be used one-time because of its obvious color contrast, simple sampling and low cost. It is easy to combine with portable equipment, so it is very suitable for on-site detection and analysis. This enables paper-based colorimetric detection at many trace levels The field of analysis is widel...

AI Technical Summary

Problems solved by technology

Unfortunately, however, so far, no one has proposed the use of electrospinning technology to create a paper-based material suitable for colorimetric detection, making it universally applicable to improve the sensitivity of colorimetric detection.

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